Camera module

ABSTRACT

A camera module includes: a housing; a reflecting module; and a lens module disposed behind the reflecting module, wherein the moving holder is disposed to be movable in one axial direction, approximately perpendicular to the optical axial direction and the one axial direction with respect to the housing, the lens module includes a carrier supported by the housing to be linearly movable in approximately the optical axial direction, the lens module includes two or more lens barrels of which some are fixed, and the others are supported by the housing to be linearly movable in approximately the optical axial direction, and lenses are distributed and provided into the at least two lens barrels.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application claims benefit of priority under 35 USC § 119(a) toKorean Patent Application No. 10-2017-0076728 filed on Jun. 16, 2017 inthe Korean Intellectual Property Office, the entire disclosure of whichis incorporated herein by reference for all purposes.

BACKGROUND

1. Field

The following description relates to a camera module.

2. Description of Related Art

Recently, camera modules have been generally installed in portableelectronic devices such as tablet personal computers (PCs), laptopcomputers, and the like, as well as in smartphones, and an auto-focusing(AF) function, an optical image stabilization (OIS) function, a zoomfunction, and the like, have been added to camera modules for mobileterminals.

However, in order to implement various functions, the structure of suchcamera modules has become complicated and the size of such cameramodules has increased, resulting in an increase in a size of portableelectronic devices in which camera modules are mounted.

In addition, when a lens or an image sensor is directly moved for thepurposes of optical image stabilization, both a weight of the lens or ofthe image sensor itself and weights of other members to which the lensor the image sensor is attached should be considered, and a certainlevel of driving force or more is thus required, resulting in increasedpower consumption.

SUMMARY

This Summary is provided to introduce a selection of concepts in asimplified form that are further described below in the DetailedDescription. This Summary is not intended to identify key features oressential features of the claimed subject matter, nor is it intended tobe used as an aid in determining the scope of the claimed subjectmatter.

In one general aspect, a camera module includes a housing having aninternal space, a reflecting module disposed in the internal space andincluding a reflecting member and a moving holder movably supported byan inner wall of the housing, and a lens module disposed behind thereflecting module in the internal space, including lenses aligned in anoptical axial direction configured such that light reflected from thereflecting member is incident to the lenses, wherein the moving holderis configured to be movable in one axial direction, approximatelyperpendicular to the optical axial direction and the one axial directionwith respect to the housing, the lens module comprises a carriersupported by the housing configured to be linearly movable inapproximately the optical axial direction, the lens module comprises twoor more lens barrels, wherein some are fixed, and the others aresupported by the housing configured to be linearly movable inapproximately the optical axial direction, and the lenses aredistributed and disposed in the two or more lens barrels.

The lens barrels may include a first lens barrel fixed to the carrierand one or more second lens barrels may be movably disposed in thecarrier.

One or more lens disposed in the first lens barrel and one or more lensdisposed in the second lens barrel may be aligned approximately parallelwith each other in the optical axial direction.

First ball bearings may be disposed between the housing and a bottomplate of the carrier.

The carrier may include a first magnet configured to generate drivingforce in the optical axial direction in response to a coil disposed inthe housing.

The housing may have a first pulling yoke disposed on a bottom surfacethereof, the first pulling yoke configured to allow the carrier to besupported by the bottom surface of the housing by attractive forcebetween the first pulling yoke and the first magnet.

First seating grooves in which the ball bearings are seated may bedisposed in a bottom surface of the housing and the bottom plate of thecarrier facing each other.

First seating grooves disposed in the housing or the carrier may beprovided to be elongate in the optical axial direction.

Second ball bearings may be disposed between a bottom plate of thecarrier and the second lens barrel.

The second lens barrel may include a second magnet configured togenerate driving force in the optical axial direction in response to acoil disposed in the housing.

The carrier includes a second pulling yoke disposed on a bottom surfacethereof, the second pulling yoke allowing the second lens barrel to besupported by the bottom surface of the carrier by attractive forcebetween the second pulling yoke and the second magnet.

Second seating grooves, in which second ball bearings are seated, may bedisposed in a bottom surface of the carrier and a bottom of the secondlens barrel facing each other.

Second seating grooves may be disposed in the carrier or the second lensbarrel, of the second seating grooves, may be disposed to be elongate inthe optical axial direction.

The second magnet may be configured to be exposed externally of thecarrier to face the coil provided in the housing.

A lens barrel fixed to the carrier, of the lens barrels, is configuredto control an auto-focusing (AF) function, and a lens barrel movedmovable in the carrier, of the lens barrels, is configured to control azoom function.

A lens barrel fixed to the carrier, of the lens barrels, is disposed ata rearmost portion.

A portable electronic device including a camera module as describedabove.

An optical axis of the lenses may be in a direction generallyperpendicular to a thickness direction of the portable electronicdevice.

Other features and aspects will be apparent from the following detaileddescription, the drawings, and the claims.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of a portable electronic device accordingto an embodiment;

FIG. 2 is a perspective view of a camera module according to anembodiment;

FIGS. 3A and 3B are cross-sectional views of a camera module accordingto an embodiment;

FIG. 4 is an exploded perspective view of a camera module according toan embodiment;

FIG. 5 is a perspective view of a housing of the camera module accordingto an embodiment;

FIG. 6 is a perspective view showing that a reflecting module and a lensmodule are coupled to the housing of the camera module according to anembodiment;

FIG. 7 is a perspective view of a board having driving coils and sensorsmounted thereon coupled to the housing of the camera module according toan embodiment;

FIG. 8 is an exploded perspective view of a rotation plate and a movingholder of the camera module according to an embodiment;

FIG. 9 is an exploded perspective view of the housing and the movingholder in the camera module according to an embodiment;

FIG. 10 is an assembled perspective view of a carrier and a lens barrelaccording to an embodiment;

FIG. 11 is a view of a form in which the reflecting module and the lensmodule are coupled to the housing according to an embodiment;

FIG. 12 is an assembled perspective view of a carrier and a lens barrelaccording to another embodiment;

FIG. 13 is a perspective view of a main board according to an embodimentand coils and components mounted on the main board; and

FIG. 14 is a perspective view of a portable electronic device accordingto another embodiment.

Throughout the drawings and the detailed description, the same referencenumerals refer to the same elements. The drawings may not be to scale,and the relative size, proportions, and depiction of elements in thedrawings may be exaggerated for clarity, illustration, and convenience.

DETAILED DESCRIPTION

The following detailed description is provided to assist the reader ingaining a comprehensive understanding of the methods, apparatuses,and/or systems described herein. However, various changes,modifications, and equivalents of the methods, apparatuses, and/orsystems described herein will be apparent after an understanding of thedisclosure of this application. For example, the sequences of operationsdescribed herein are merely examples, and are not limited to those setforth herein, but may be changed as will be apparent after anunderstanding of the disclosure of this application, with the exceptionof operations necessarily occurring in a certain order. Also,descriptions of features that are known in the art may be omitted forincreased clarity and conciseness.

The features described herein may be embodied in different forms, andare not to be construed as being limited to the examples describedherein. Rather, the examples described herein have been provided merelyto illustrate some of the many possible ways of implementing themethods, apparatuses, and/or systems described herein that will beapparent after an understanding of the disclosure of this application.

Throughout the specification, when an element, such as a layer, region,or substrate, is described as being “on,” “connected to,” or “coupledto” another element, it may be directly “on,” “connected to,” or“coupled to” the other element, or there may be one or more otherelements intervening therebetween. In contrast, when an element isdescribed as being “directly on,” “directly connected to,” or “directlycoupled to” another element, there can be no other elements interveningtherebetween.

As used herein, the term “and/or” includes any one and any combinationof any two or more of the associated listed items.

Although terms such as “first,” “second,” and “third” may be used hereinto describe various members, components, regions, layers, or sections,these members, components, regions, layers, or sections are not to belimited by these terms. Rather, these terms are only used to distinguishone member, component, region, layer, or section from another member,component, region, layer, or section. Thus, a first member, component,region, layer, or section referred to in examples described herein mayalso be referred to as a second member, component, region, layer, orsection without departing from the teachings of the examples.

Spatially relative terms such as “above,” “upper,” “below,” and “lower”may be used herein for ease of description to describe one element'srelationship to another element as shown in the figures. Such spatiallyrelative terms are intended to encompass different orientations of thedevice in use or operation in addition to the orientation depicted inthe figures. For example, if the device in the figures is turned over,an element described as being “above” or “upper” relative to anotherelement will then be “below” or “lower” relative to the other element.Thus, the term “above” encompasses both the above and below orientationsdepending on the spatial orientation of the device. The device may alsobe oriented in other ways (for example, rotated 90 degrees or at otherorientations), and the spatially relative terms used herein are to beinterpreted accordingly.

The terminology used herein is for describing various examples only, andis not to be used to limit the disclosure. The articles “a,” “an,” and“the” are intended to include the plural forms as well, unless thecontext clearly indicates otherwise. The terms “comprises,” “includes,”and “has” specify the presence of stated features, numbers, operations,members, elements, and/or combinations thereof, but do not preclude thepresence or addition of one or more other features, numbers, operations,members, elements, and/or combinations thereof.

Due to manufacturing techniques and/or tolerances, variations of theshapes shown in the drawings may occur. Thus, the examples describedherein are not limited to the specific shapes shown in the drawings, butinclude changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in variousways as will be apparent after an understanding of the disclosure ofthis application. Further, although the examples described herein have avariety of configurations, other configurations are possible as will beapparent after an understanding of the disclosure of this application.

FIG. 1 is a perspective view of a portable electronic device accordingto an embodiment.

Referring to FIG. 1, a portable electronic device 1 according to anembodiment may be a portable electronic device such as a mobilecommunications terminal, a smartphone, a tablet personal computer (PC),or the like, in which a camera module 1000 is mounted.

As shown in FIG. 1, the portable electronic device 1 may be mounted withthe camera module 1000 to capture an image of a subject.

In an embodiment, the camera module 1000 may include lenses, and anoptical axis (a Z axis) of each of the lenses may be directed toward adirection perpendicular to a thickness direction (a Y-axial direction ora direction from a front surface of the portable electronic device to arear surface thereof or an opposite direction to the direction from thefront surface of the portable electronic device to the rear surfacethereof) of the portable electronic device 1.

As an example, the optical axis (the Z axis) of each of the plurality oflenses included in the camera module 1000 is disposed in a widthdirection or a length direction of the portable electronic device 1.

Therefore, even though the camera module 1000 has functions such as anauto-focusing (AF) function, a zoom function, an optical imagestabilization (hereinafter, referred to as OIS) function, a thickness ofthe portable electronic device 1 is not increased. Therefore, theportable electronic device 1 may be miniaturized.

The camera module 1000 according to an embodiment may have the AFfunction, the zoom function, and the OIS function.

Since the camera module 1000 including the AF function, the zoomfunction, the OIS function needs to include various components, a sizeof the camera module is increased as compared to a general cameramodule.

When the size of the camera module 1000 is increased, a problem inminiaturizing the portable electronic device 1 in which the cameramodule 1000 is mounted occurs.

For example, when the number of stacked lenses in the camera module isincreased for the purpose of the zoom function and stacked lenses areformed in the camera module in the thickness direction of the portableelectronic device, a thickness of the portable electronic device is alsoincreased depending on the number of stacked lenses. Therefore, when thethickness of the portable electronic device is not increased, the numberof stacked lenses may not be sufficiently secured, such that zoomperformance deteriorates.

In addition, an actuator moving lens groups in an optical axialdirection or a direction perpendicular to the optical axis needs to beinstalled in order to implement the AF function and the OIS function,and when the optical axis (the Z axis) of the lens group is in thethickness direction of the portable electronic device, the actuatormoving the lens group needs also to be installed in the thicknessdirection of the portable electronic device. Therefore, a thickness ofthe portable electronic device is increased.

However, in the camera module 1000 according to an embodiment, theoptical axis (the Z axis) of each of the lenses is disposedperpendicularly to the thickness direction of the portable electronicdevice 1. Therefore, even though the camera module 1000 having the AFfunction, the zoom function, and the OIS function is mounted in theportable electronic device 1, the portable electronic device 1 isminiaturized.

FIG. 2 is a perspective view showing the camera module according to anembodiment, FIGS. 3A and 3B are cross-sectional views illustrating thecamera module according to an exemplary embodiment, and FIG. 4 is anexploded perspective view illustrating the camera module according to anexemplary embodiment in the present disclosure.

Referring to FIGS. 2 through 4, the camera module 1000 according to anembodiment includes the reflecting module 1100, the lens module 1200,and the image sensor module 1300 provided in the housing 1010.

The reflecting module 1100 changes a direction of light. As an example,a moving direction of light incident through an opening 1031 of a cover1030 covering an upper portion of the camera module 1000 is changedthrough the reflecting module 1100 so that the light is directed towardthe lens module 1200. To this end, the reflecting module 1100 includesthe reflecting member 1110 reflecting the light.

For example, a path of light incident in the thickness direction (theY-axial direction) of the camera module 1000 is changed by thereflecting module 1100 to approximately coincide with the optical axialdirection (a Z-axial direction).

The lens module 1200 includes lenses through which the light which themoving direction has been changed by the reflecting module 1100 passesthrough. In addition, the lens module 1200 includes a carrier 1210including two or more lens barrels 1215 and 1220. An auto-focusing (AF)function may be implemented depending on movement of the carrier 1210 inthe optical axial direction (the Z-axial direction), and a zoom functionmay be implemented depending on movement, in the optical axial direction(the Z-axial direction), of some of the lens barrels 1215 and 1220included in the carrier 1210.

The image sensor module 1300 includes an image sensor 1310 convertingthe light passing through the lenses into an electrical signal and aprinted circuit board 1320 on which the image sensor 1310 is mounted. Inaddition, the image sensor module 1300 includes an optical filter 1340filtering the light that passes through the lens module 1200 and isincident thereto. The optical filter 1340 may be an infrared cut-offfilter.

In an internal space of the housing 1010, the reflecting module 1100 isprovided in front of the lens module 1200 and the image sensor module1300 is provided behind the lens module 1200.

Referring to FIGS. 2 through 11, the camera module 1000 according to anembodiment includes the reflecting module 1100, the lens module 1200,and the image sensor module 1300 provided in the housing 1010.

The reflecting module 1100, the lens module 1200, and the image sensormodule 1300 are sequentially provided from one side of the housing 1010to the other side thereof in the housing 1010. The housing 1010 has aninternal space into which the reflecting module 1100, the lens module1200, and the image sensor module 1300 are inserted (the printed circuitboard 1320 included in the image sensor module 1300 may be attached toan outer portion of the housing 1010).

For example, as shown in the drawings, the housing 1010 is integrallyprovided so that both of the reflecting module 1100 and the lens module1200 are inserted into the internal space of the housing 1010. However,the housing 1010 is not limited thereto. For example, separate housingsinto which the reflecting module 1100 and the lens module 1200 areinserted, respectively, may also be connected to each other.

In addition, the housing 1010 is covered by the cover 1030 so that theinternal space of the housing 1010 is not visible.

The cover 1030 has the opening 1031 through which light is incident, anda direction of the light incident through the opening 1031 is changed bythe reflecting module 1100, such that the light is incident to the lensmodule 1200. The cover 1030 is integrally provided to cover the entirehousing 1010, or may be provided as separate members each covering thereflecting module 1100 and the lens module 1200.

To this end, the reflecting module 1100 includes the reflecting member1110 reflecting the light. In addition, the light incident to the lensmodule 1200 passes through the lens groups (at least two lens modules1215 and 1220) and is then converted into and stored as an electricalsignal by the image sensor 1310.

The housing 1010 includes the reflecting module 1100 and the lens module1200 disposed in the internal space thereof. Therefore, in the internalspace of the housing 1010, a space in which the reflecting module 1100is disposed and a space in which the lens module 1200 is disposed aredistinguished from each other by protruding walls 1007. In addition, thereflecting module 1100 is provided in front of the protruding walls1007, and the lens module 1200 is provided behind the protruding walls1007. The protruding walls 1007 protrude from opposite sidewalls of thehousing 1010 to the internal space.

In the reflecting module 1100 provided in front of the protruding walls1007, a moving holder 1120 is closely adhered and supported by an innerwall surface of the housing 1010 by attractive force between a pullingyoke 1153 provided on the inner wall surface of the housing 1010 and apulling magnet 1151 provided in the moving holder 1120. Here, althoughnot illustrated in the drawings, the housing 1010 may also be providedwith a pulling magnet, and the moving holder 1120 may also be providedwith a pulling yoke. However, a structure illustrated in the drawingswill hereinafter be described for convenience of explanation.

First ball bearings 1131, a rotation plate 1130, and second ballbearings 1133 are provided between the inner wall surface of the housing1010 and the moving holder 1120.

In addition, since the first ball bearings 1131 and the second ballbearings 1133 are closely adhered to seating grooves 1132, 1134, 1021,and 1121 while being partially inserted into the seating grooves 1132,1134, 1021, and 1121 as described below, when the moving holder 1120 andthe rotation plate 1130 are inserted into the internal space of thehousing 1010, a slight space may be required between the moving holder1120 and the protruding walls 1007, and after the moving holder 1120 ismounted in the housing 1010, the moving holder 1120 may be closelyadhered to the inner wall surface of the housing 1010 by the attractiveforce between the pulling yoke and the pulling magnet, and a slightspace may thus remain between the moving holder 1120 and the protrudingwalls 1007.

Therefore, in an embodiment, stoppers 1050 fitted into the protrudingwalls 1007 while supporting the moving holder 1120 and having a hookshape are provided (even though the stoppers 1050 are not provided, themoving holder is fixed by the attractive force between the pullingmagnet 1151 and the pulling yoke 1153). The stoppers 1050 may have ahook shape, and may support the moving holder 1120 in a state in whichhook portions thereof are hooked onto the protruding walls 1007.

The stoppers 1050 serve as brackets supporting the moving holder 1120when the reflecting module 1100 is not driven, and additionally serve asthe stoppers 1050 adjusting movement of the moving holder 1120 when thereflecting module 1100 is driven. The stoppers 1050 are provided,respectively, on the protruding walls 1007 protruding from the oppositesidewalls of the housing. A space is provided between the stoppers 1050and the moving holder 1120 so that the moving holder 1120 is smoothlyrotated. In addition, the stoppers 1050 are formed of an elasticmaterial to allow the moving holder 1120 to be smoothly moved in a statein which the moving holder 1120 is supported by the stoppers 1050.

In addition, the housing 1010 includes a first driving part 1140 and asecond driving part 1240 each provided in order to drive the reflectingmodule 1100 and the lens module 1200. The first driving part 1140includes coils 1141 b, 1143 b, and 1145 b for driving the reflectingmodule 1100, and the second driving part 1240 includes coils 1241 b,1243 b, 1245 b, and 1247 b for driving the lens module 1200.

In addition, since the coils 1141 b, 1143 b, 1145 b, 1241 b, 1243 b,1245 b, and 1247 b are provided in the housing 1010 in a state in whichthey are mounted on a main board 1070, the housing 1010 is provided withthrough-holes 1015, 1016, 1017, 1018, and 1019 so that the coils 1141 b,1143 b, 1145 b, 1241 b, 1243 b, 1245 b, and 1247 b are exposed to theinternal space of the housing 1010.

Here, the main board 1070 on which the coils 1141 b, 1143 b, 1145 b,1241 b, 1243 b, 1245 b, and 1247 b are mounted may be entirely connectedand integrally provided, as shown in the drawings. In this case, oneterminal may be provided, and connection of an external power supply andsignals may thus be easy. However, the main board 1070 is not limitedthereto, but may also be provided as plural boards by separating a boardon which coils for the reflecting module 1100 are mounted and a board onwhich coils for the lens module 1200 are mounted from each other.

The reflecting module 1100 changes the path of the light incidentthereto through the opening 1031. When an image or a moving picture iscaptured, the image may be blurred or the moving picture may be shakendue to a hand-shake, or the like, of a user. In this case, thereflecting module 1100 corrects the hand-shake of the user by moving themoving holder 1120 on which the reflecting member 1110 is mounted. Forexample, when a shake is generated at the time of capturing the image orthe moving picture due to the hand-shake, or the like, of the user, arelative displacement corresponding to the shake is provided to themoving holder 1120 to compensate for the shake.

In addition, in the present exemplary embodiment, the OIS function isimplemented by the movement of the moving holder 1120 having arelatively low weight due to absence of lenses, and the like, and powerconsumption may thus be significantly reduced.

That is, in an embodiment, the light in which the OIS is performed isincident to the lens module 1200 by changing the direction of the lightby the movement of the moving holder 1120 on which the reflecting member1110 is provided without moving the lens barrel including the lenses orthe image sensor in order to implement the OIS function.

The reflecting module 1100 includes the moving holder 1120 provided inthe housing 1010 supported by the housing 1010, the reflecting member1110 mounted on the moving holder 1120, and the first driving part 1140moving the moving holder 1120.

The reflecting member 1110 changes the direction of the light. Forexample, the reflecting member 1110 may be a mirror or a prismreflecting the light (a case in which the reflecting member 1110 is aprism is shown in the drawings associated with the exemplary embodimentfor convenience of explanation).

The reflecting member 1110 is fixed to the moving holder 1120. Themoving holder 1120 has a mounted surface on which the reflecting member1110 is mounted.

The mounted surface 1123 of the moving holder 1120 has an inclinedsurface so that the path of the light is changed. For example, themounted surface 1123 has an inclined surface inclined with respect tothe optical axis (the Z axis) of each of the lenses by 30 to 60°. Inaddition, the inclined surface of the moving holder 1120 is directedtoward the opening 1031 of the cover 1030 through which the light isincident.

The moving holder 1120 on which the reflecting member 1110 is mountedmay be movably accommodated in an internal space of the housing 1010.For example, the moving holder 1120 is accommodated in the housing 1010to be rotatable around a first axis (an X axis) and a second axis (a Yaxis). Here, the first axis (the X axis) and a second axis (a Y axis)refer to axes perpendicular to the optical axis (the Z axis), and areperpendicular to each other.

The moving holder 1120 is supported by the housing 1010 by the firstball bearings 1131 aligned along the first axis (the X axis) and thesecond ball bearings 1133 aligned along the second axis (the Y axis) sothat it is smoothly rotated around the first axis (the X axis) and thesecond axis (the Y axis).

In the drawings, two first ball bearings 1131 aligned along the firstaxis (the X axis) and two second ball bearings 1133 aligned along thesecond axis (the Y axis) are shown by way of example.

In addition, the moving holder 1120 may be rotated around the first axis(the X axis) and the second axis (the Y axis) by a first driving part1140 to be described below.

An example in which the reflecting member 1110 is moved in a secondaxial direction (a Y-axial direction) or a first axial direction (anX-axial direction) by the rotation of the moving holder 1120 around thefirst axis (the X axis) or the second axis (the Y axis) is described inan embodiment, but the movement of the reflecting member 1110 is notlimited thereto. That is, the reflecting member 1110 may also be movedin the second axial direction (the Y-axial direction) or the first axialdirection (the X-axial direction) by linear movement of the movingholder 1120 in the first axial direction (the X-axial direction) or thesecond axial direction (the Y-axial direction).

The reflecting member 1110 is provided on the moving holder 1120, and isrotated together with the moving holder 1120 depending on the rotationof the moving holder 1120. The reflecting member 1110 is moved in thesecond axial direction (the Y-axial direction) by the rotation of themoving holder 1120 around the first axis (the X axis) to perform OIS inthe second axial direction (the Y-axial direction) (OIS Y). In addition,the reflecting member 1110 is moved in the first axial direction (theX-axial direction) by the rotation of the moving holder 1120 around thesecond axis (the Y axis) to perform OIS in the first axial direction(the X-axial direction) (OIS X).

The first ball bearings 1131 and the second ball bearings 1133 areprovided on a front surface and a rear surface of the rotation plate1130, respectively. (Alternatively, the first ball bearings 1131 and thesecond ball bearings 1133 may also be provided on a rear surface or afront surface of the rotation plate 1130, respectively. That is, thefirst ball bearings 1131 may be aligned along the second axis (the Yaxis) and the second ball bearings 1133 may be aligned along the firstaxis (the X axis), and a structure shown in the drawings willhereinafter be described for convenience of explanation). The rotationplate 1130 is provided between the moving holder 1120 and an innersurface of the housing 1010.

In addition, the moving holder 1120 is supported by the housing 1010through the rotation plate 1130 (the first ball bearings 1131 and thesecond ball bearings 1133 may also be provided between the moving holder1120 and the housing 1010) by the attractive force between the pullingmagnet 1151 or the pulling yoke provided in the moving holder 1120 andthe pulling yoke 1153 or the pulling magnet provided in the housing1010.

The seating grooves 1132 and 1134 into which the first ball bearings1131 and the second ball bearings 1133 are inserted, respectively, areprovided in the front surface and the rear surface of the rotation plate1130, respectively, and include first seating grooves 1132 into whichthe first ball bearings 1131 are partially inserted and second seatinggrooves 1134 into which the second ball bearings 1133 are partiallyinserted.

In addition, the housing 1010 may be provided with third seating grooves1021 into which the first ball bearings 1131 are partially inserted, andthe moving holder 1120 is provided with fourth seating grooves 1121 intowhich the second ball bearings 1133 are partially inserted.

The first seating grooves 1132, the second seating grooves 1134, thethird seating grooves 1021, and the fourth seating grooves 1121described above are provided in a hemispherical or polygonal(poly-prismatic or poly-pyramidal) groove shape so that the first ballbearings 1131 and the second ball bearings 1133 are easily rotated.

The first ball bearings 1131 and the second ball bearings 1133 serve asbearings while being rolled or slid in the first seating grooves 1132,the second seating grooves 1134, the third seating grooves 1021, and thefourth seating grooves 1121.

Meanwhile, the first ball bearings 1131 and the second ball bearings1133 have a structure in which they are fixedly disposed in one or moreof the housing 1010, the rotation plate 1130, and the moving holder1120. For example, the first ball bearings 1131 are fixedly disposed inthe housing 1010 or the rotation plate 1130, and the second ballbearings 1133 may be fixedly disposed in the rotation plate 1130 or themoving holder 1120.

In this example, only a member facing a member in which the first ballbearings 1131 or the second ball bearings 1133 are fixedly disposed isprovided with the seating grooves. In this case, the ball bearings serveas friction bearings by sliding thereof rather than rotation thereof.

Here, when the first ball bearings 1131 and the second ball bearings1133 are fixedly provided in any one of the housing 1010, the rotationplate 1130, and the moving holder 1120, the first ball bearings 1131 andthe second ball bearings 1133 are provided in a spherical shape, ahemispherical shape, a round protrusion shape, or the like.

In addition, since the ball bearings each in charge of the first axis(the X axis) and the second axis (the Y axis) are provided, the twofirst ball bearings 1131 aligned along the first axis (the X axis) areprovided in a cylindrical shape extended in the first axis (the X axis),and the two second ball bearings 1133 aligned along the second axis (theY axis) are provided in a cylindrical shape extended in the second axis(the Y axis). In this case, the seating grooves 1021, 1121, 1132, and1134 are also provided in a semi-cylindrical shape corresponding toshapes of the first and second ball bearings.

In addition, the first ball bearings 1131 and the second ball bearings1133 may be separately manufactured and be then attached to any one ofthe housing 1010, the rotation plate 1130, and the moving holder 1120.Alternatively, the first ball bearings 1130 and the second ball bearings1133 may be provided integrally with the housing 1010, the rotationplate 1130, or the moving holder 1120 at the time of manufacturing thehousing 1010, the rotation plate 1130, or the moving holder 1120.

The first driving part 1140 generates driving force so that the movingholder 1120 is rotatable around the two axes.

As an example, the first driving part 1140 includes magnets 1141 a, 1143a, and 1145 a and coils 1141 b, 1143 b, and 1145 b disposed to face themagnets 1141 a, 1143 a, and 1145 a.

When power is applied to the coils 1141 b, 1143 b, and 1145 b, themoving holder 1120 in which the magnets 1141 a, 1143 a, and 1145 a aremounted is rotated around the first axis (the X axis) and the secondaxis (the Y axis) by electromagnetic interaction between the magnets1141 a, 1143 a, and 1145 a and the coils 1141 b, 1143 b, and 1145 b.

The magnets 1141 a, 1143 a, and 1145 a are mounted in the moving holder1120. As an example, some 1141 a of the magnets 1141 a, 1143 a, and 1145a are mounted (to be used for the OIS Y or the OIS X) on a lower surfaceof the moving holder 1120, and the others 1143 a and 1145 a of themagnets 1141 a, 1143 a, and 1145 a are mounted (to be used for the OIS Yor the OIS X) on side surfaces of the moving holder 1120.

The coils 1141 b, 1143 b, and 1145 b may be mounted in the housing 1010.As an example, the coils 1141 b, 1143 b, and 1145 b are mounted in thehousing 1010 through the main board 1070. That is, the coils 1141 b,1143 b, and 1145 b are provided on the main board 1070, and the mainboard 1070 is mounted in the housing 1010.

Here, an example in which the main board 1070 is entirely integrallyprovided so that both of the coils for the reflecting module 1100 andthe coils for the lens module 1200 are mounted thereon is shown in thedrawings, the main board 1070 may be provided as two or more separateboards on which the coils for the reflecting module 1100 and the coilsfor the lens module 1200 are mounted, respectively.

In an embodiment, when the moving holder 1120 is rotated, a closed loopcontrol manner of sensing and feeding back a position of the movingholder 1120 is used.

Therefore, position sensors 1141 c and 1143 c may be required in orderto perform a closed loop control. The position sensors 1141 c and 1143 cmay be hall sensors.

The position sensors 1141 c and 1143 c are disposed inside or outsidethe coils 1141 b and 1143 b, respectively, and are mounted on the mainboard 1070 on which the coils 1141 b and 1143 b are mounted.

Meanwhile, the main board 1070 may be provided with a gyro sensor (notillustrated) sensing a shake factor such as the hand-shake, or the like,of the user, and may be provided with a driver integrated circuit (IC)(not illustrated) providing driving signals to the coils 1141 b, 1143 b,and 1145 b.

When the moving holder 1120 is rotated around the first axis (the Xaxis), the moving holder 1120 is rotated depending on rotation of therotation plate 1130 around the first ball bearings 1131 arranged alongthe first axis (the X axis) (in this case, the moving holder 1120 is notmoved relative to the rotation plate 1130).

In addition, when the moving holder 1120 is rotated around the secondaxis (the Y axis), the moving holder 1120 is rotated around the secondball bearings 1133 arranged along the second axis (the Y axis) (in thiscase, the rotation plate 1130 is not rotated, and the moving holder 1120is thus moved relative to the rotation plate 1130).

That is, when the moving holder 1120 is rotated around the first axis(the X axis), the first ball bearings 1131 may act, and when the movingholder 1120 is rotated around the second axis (the Y axis), the secondball bearings 1133 may act. The reason is that the second ball bearings1133 aligned along the second axis (the Y axis) are not moved in a statein which they are fitted into the seating grooves when the moving holder1120 is rotated around the first axis (the X axis) and the first ballbearings 1131 aligned along the first axis (the X axis) are not moved ina state in which they are fitted into the seating grooves when themoving holder 1120 is rotated around the second axis (the Y axis), asshown in the drawings.

The light reflected from the reflecting module 1100 is incident to thelens module 1200. In addition, the AF function or the zoom function forthe incident light are implemented by movement, in the optical axialdirection (the Z-axial direction), of the carrier 1210 and the lensbarrel 1220 provided in the lens module 1200.

The stacked lens groups provided in the lens module 1200 are distributedand provided into two or more lens barrels 1215 and 1220. In addition,even though the stacked lens groups are distributed and provided intotwo or more lens barrels 1215 and 1220, optical axes of the lens groupsis aligned in the Z-axial direction, a direction in which the light isemitted from the reflecting module 1100.

The lens module 1200 may include the second driving part 1240 in orderto implement the AF function and the zoom function.

The lens module 1200 includes the carrier 1210 provided in the internalspace of the housing 1010 to be movable in the optical axial direction(the Z-axial direction), one or more first lens barrel 1215 fixedlydisposed in the carrier 1210 and including lenses stacked therein, oneor more second lens barrel 1220 provided in the carrier 1210 to bemovable in the optical axial direction (the Z-axial direction) andincluding lenses stacked therein, and the second driving part 1240moving the carrier 1210 in the optical axial direction (the Z-axialdirection) with respect to the housing 1010 (also moving the first andsecond lens barrels 1215 and 1220) and moving the second lens barrel1220 in the optical axial direction (the Z-axial direction) with respectto the carrier 1210.

The light which the direction has been changed by the reflecting module1100 is refracted while passing through the lenses.

The carrier 1210 is configured to be moved in approximately the opticalaxial direction (the Z-axial direction) in order to implement the AF orzoom function (the first and second lens barrels 1215 and 1220 put onthe carrier 1210 may also be moved). In addition, the second lens barrel1220 is moved in approximately the optical axial direction (the Z-axialdirection) in the carrier 1210 in order to implement the AF or zoomfunction (generally, the AF function is implemented by the movement ofthe carrier 1210 and the zoom function is implemented by the movement ofthe second lens barrel 1220 in the carrier 1210, but is not limitedthereto).

Therefore, the second driving part 1240 generates driving force so thatthe carrier 1210 and the second lens barrel 1220 are movable in theoptical axial direction (the Z-axial direction). That is, the seconddriving part 1240 moves the carrier 1210 to change a distance betweenthe lens module 1200 and the reflecting module 1100 or the second lensbarrel 1220 provided in the carrier 1210 is moved in the optical axialdirection (the Z-axial direction), such that the AF or zoom function maybe implemented.

As an example, the second driving part 1240 includes the magnets 1241 a,1243 a, 1245 a, and 1247 a and the coils 1241 b, 1243 b, 1245 b, and1247 b disposed to face the magnets 1241 a, 1243 a, 1245 a, and 1247 a.

When power is applied to the coils 1241 b, 1243 b, 1245 b, and 1247 b,the carrier 1210 in which the magnets 1241 a, 1243 a, 1245 a, and 1247 aare mounted is moved in the optical axial direction (the Z-axialdirection) or the second lens barrel 1220 is moved in the optical axialdirection (the Z-axial direction), by electromagnetic interactionbetween the magnets 1241 a, 1243 a, 1245 a, and 1247 a and the coils1241 b, 1243 b, 1245 b, and 1247 b.

Some 1245 a and 1247 a of the magnets 1241 a, 1243 a, 1245 a, and 1247 aare mounted in the second lens barrel 1220. As an example, magnets 1245a and 1247 a are mounted on side surfaces of the second lens barrel1220. In addition, the other magnets 1241 a and 1243 a are mounted inthe carrier 1210. As an example, the other magnets 1241 a and 1243 a aremounted on side surfaces of the carrier 1210.

Some 1241 b and 1243 b of the coils 1241 b, 1243 b, 1245 b, and 1247 bare mounted in the housing 1010 to face some 1241 a and 1243 a of themagnets. In addition, the other coils 1245 b and 1247 b are mounted inthe housing 1010 to face the other magnets 1245 a and 1247 a.

As an example, the main board 1070 is mounted in the housing 1010 in astate in which the coils 1241 b, 1243 b, 1245 b, and 1247 b are mountedon the main board 1070.

In an embodiment, when the carrier 1210 and the second lens barrel 1220are moved, a closed loop control manner of sensing and feeding backpositions of the carrier 1210 and the second lens barrel 1220 is used.Therefore, position sensors 1243 c and 1247 c may be required in orderto perform a closed loop control. The position sensors 1243 c and 1247 cmay be hall sensors.

The position sensors 1243 c and 1247 c are disposed inside or outsidethe coils 1243 b and 1247 b, respectively, and are mounted on the mainboard 1070 on which the coils 1243 b and 1247 b are mounted.

The carrier 1210 is provided in the housing 1010 to be movable in theoptical axial direction (the Z-axial direction). As an example, aplurality of third ball bearings 1211 are disposed between the carrier1210 and the housing 1010.

The third ball bearings 1211 serve as bearings guiding the movement ofthe carrier 1210 in a process such as an AF process, or the like. Inaddition, the third ball bearings 1211 serve to maintain an intervalbetween the carrier 1210 and the housing 1010.

The third ball bearings 1211 are configured to be rolled in the opticalaxial direction (the Z-axial direction) when the driving force movingthe carrier 1210 in the optical axial direction (the Z-axial direction)is generated. Therefore, the third ball bearings 1211 guide the movementof the carrier 1210 in the optical axial direction (the Z-axialdirection).

Guide grooves 1213 and 1013 accommodating the third ball bearings 1211therein are formed in facing surfaces of the carrier 1210 and thehousing 1010, respectively, and some of the guide grooves 1213 and 1013are provided to be elongate in the optical axial direction (the Z-axialdirection).

The third ball bearings 1211 are accommodated in the guide grooves 1213and 1013 and are fitted between the carrier 1210 and the housing 1010.

Each of the guide grooves 1213 and 1013 are formed to be elongate in theoptical axial direction (the Z-axial direction). In addition, crosssections of the guide grooves 1213 and 1013 may have various shapes suchas a round shape, a polygonal shape, and the like.

Here, the carrier 1210 is pressed toward the housing 1010 so that thethird ball bearings 1211 are maintained in a state in which they are incontact with the carrier 1210 and the housing 1010.

To this end, the housing 1010 is mounted with pulling yokes 1216 facingthe plurality of magnets 1241 a and 1243 a mounted in the carrier 1210.The pulling yokes 1216 may be formed of a magnetic material.

Attractive force acts between the pulling yokes 1216 and the magnets1241 a and 1243 a. Therefore, the carrier 1210 is moved in the opticalaxial direction (the Z-axial direction) by the driving force of thesecond driving part 1240 in a state in which it is in contact with thethird ball bearings 1211.

The second lens barrel 1220 is provided in the carrier 1210 to bemovable in the optical axial direction (the Z-axial direction). As anexample, fourth ball bearings 1250 are provided between the second lensbarrel 1220 and the carrier 1210, and the second lens barrel 1220 isslid or rolled with respect to the carrier 1210 by the fourth ballbearings 1250.

The fourth ball bearings 1250 may be configured to assist in a rollingmotion or a sliding motion of the second lens barrel 1220 in the opticalaxial direction (the Z-axial direction) when the driving force isgenerated so that the second lens barrel 1220 is moved in the opticalaxial direction (the Z-axial direction).

Guide grooves 1224 and 1214 accommodating the fourth ball bearings 1250therein are formed in facing bottom surfaces of the second lens barrel1220 and the carrier 1210, respectively, and some of the guide groovesare provided to be elongate in the optical axial direction (the Z-axialdirection).

The fourth ball bearings 1250 are accommodated in the guide grooves 1224and 1214 and are fitted between the second lens barrel 1220 and thecarrier 1210.

Each of the guide grooves 1224 and 1214 are formed to be elongate in theoptical axial direction (the Z-axial direction). In addition, crosssections of the guide grooves 1224 and 1214 may have various shapes suchas a round shape, a polygonal shape, and the like.

Here, the second lens barrel 1220 is pressed toward the carrier 1210 sothat the fourth ball bearings 1250 are maintained in a state in whichthey are in contact with the second lens barrel 1220 and the carrier1210. That is, the second lens barrel 1220 is pressed toward the carrier1210 in a bottom direction in which the fourth ball bearings 1250 areprovided.

To this end, the second lens barrel 1220 is mounted with pulling yokes1260 facing the magnets 1245 a and 1247 a mounted in the carrier 1210.The pulling yokes 1260 may be formed of a magnetic material.

Attractive force acts between the pulling yokes 1260 and the magnets1245 a and 1247 a. Therefore, the second lens barrel 1220 is moved inthe optical axial direction (the Z-axial direction) by the driving forceof the second driving part 1240 in a state in which it is in contactwith the fourth ball bearings 1250.

FIG. 12 is an assembled perspective view of a carrier and a lens barrelaccording to another embodiment.

In the camera module according to an embodiment, the lens module 1200includes two or more lens barrels including the lens barrel 1215 fixedlydisposed in the carrier 1210. The camera module 1000 described withreference to FIGS. 2 through 11 includes two lens barrels, and thecamera module according to another embodiment includes three or morelens barrels.

Referring to FIG. 12, the camera module according to an embodimentincludes three lens barrels 1215, 1220, and 1220-2 including the lensbarrel 1215 fixedly provided in the carrier 1210. A first lens barrel1215 and a second lens barrel 1220 are provided as described above, anda third lens barrel 1220-2 is provided in the same structure as that ofthe second lens barrel 1220 provided in the carrier 1210 in front of thesecond lens barrel 1220.

In this case, an AF function may be implemented depending on movement ofthe carrier 1210 in the optical axial direction (the Z-axial direction),and a zoom function may be implemented depending on movement, in theoptical axial direction (the Z-axial direction), of some of the lensbarrels 1220 and 1220-2 included in the carrier 1210.

In addition, also in an example in which four or more lens modules areprovided, a lens barrel may be added to the carrier in the same manner.

FIG. 13 is a perspective view of a main board according to an embodimentand coils and components mounted on the main board.

Referring to FIG. 13, the coils 1141 b, 1143 b, and 1145 b of the firstdriving part 1140 for driving the reflecting module 1100 and the coils1241 b, 1243 b, 1245 b, and 1247 b of the second driving part 1240 fordriving the lens module 1200 are mounted on an inner surface of the mainboard 1070 according to an embodiment. In addition, components 1078 suchas various passive elements, active elements, and the like, a gyrosensor 1079, and the like, may be mounted on an outer surface of themain board 1070. Therefore, the main board 1070 may be a double-sidedsubstrate.

In detail, the main board 1070 includes a first side substrate 1071 anda second side substrate 1072 disposed approximately in parallel witheach other, and a bottom substrate 1073 connecting the first sidesubstrate 1071 and the second side substrate 1072 to each other, and aterminal part 1074 for connection of an external power supply and asignal is connected to any one of the first side substrate 1071, thesecond side substrate 1072, and the bottom substrate 1073.

Some of the coils 1143 b (see FIG. 13) of the coils of the first drivingpart 1140 for driving the reflecting module 1100, the sensor 1143 c, andsome 1241 b and 1245 b (see FIG. 13) of the coils of the second drivingpart 1240 for driving the lens module 1200 are mounted on the first sidesubstrate 1701.

Some 1145 b (see FIG. 13) of the coils of the first driving part 1140for driving the reflecting module 1100, some 1243 b and 1247 b (see FIG.13) of the coils of the second driving part 1240 for driving the lensmodule 1200, and the sensors 1243 c and 1247 c may be mounted on thesecond side substrate 1702.

The coil 1141 b of the first driver 1140 for driving the reflectingmodule 1100 and the sensor 1141 c of the first driver 1140 for sensingthe position of the reflecting module 1100 may be mounted on the bottomsubstrate 1073.

A case in which the components 1078 such as the various passiveelements, active elements, and the like, the gyro sensor 1079, and thelike, are mounted on the first side substrate 1071 is illustrated in thedrawing, but the components 1078 such as the various passive elements,active elements the gyro sensor 1079, may be mounted on the second sidesubstrate 1072 or be appropriately distributed and mounted on the firstside substrate 1071 and the second side substrate 1072.

In addition, the coils 1141 b, 1143 b, 1145 b, 1241 b, 1243 b, 1245 b,and 1247 b and the position sensors 1141 c, 1143 c, 1243 c, and 1247 cmounted on the first side substrate 1071, the second side substrate1072, and the bottom substrate 1073 may be variously distributed andmounted on the respective substrates depending on a design of the cameramodule.

FIG. 14 is a perspective view illustrating a portable electronic deviceaccording to an embodiment.

Referring to FIG. 14, a portable electronic device 2 according to anembodiment may be a portable electronic device such as a mobilecommunications terminal, a smartphone, a tablet personal computer (PC),or the like, in which camera modules 500 and 1000 are mounted.

In an embodiment, the camera modules 500 and 1000 may be mounted in theportable electronic device 2.

At least one of the camera modules 500 and 1000 may be the camera module1000 according to embodiments described with reference to FIGS. 2through 18.

That is, a portable electronic device including a dual camera module mayinclude the camera module 1000 according to an embodiment as one or bothof two camera modules.

As set forth above, the camera module and the portable electronic deviceincluding the same according to embodiments has a simple structure and areduced size while implementing the auto-focusing function, the zoomfunction, and the OIS function. In addition, power consumption issignificantly reduced.

While this disclosure includes specific examples, it will be apparentafter an understanding of the disclosure of this application thatvarious changes in form and details may be made in these exampleswithout departing from the spirit and scope of the claims and theirequivalents. The examples described herein are to be considered in adescriptive sense only, and not for purposes of limitation. Descriptionsof features or aspects in each example are to be considered as beingapplicable to similar features or aspects in other examples. Suitableresults may be achieved if the described techniques are performed in adifferent order, and/or if components in a described system,architecture, device, or circuit are combined in a different manner,and/or replaced or supplemented by other components or theirequivalents. Therefore, the scope of the disclosure is defined not bythe detailed description, but by the claims and their equivalents, andall variations within the scope of the claims and their equivalents areto be construed as being included in the disclosure.

What is claimed is:
 1. A camera module comprising: a housing having aninternal space; a reflecting module disposed in the internal space andcomprising a reflecting member and a moving holder movably supported byan inner wall of the housing; and a lens module disposed behind thereflecting module in the internal space, and comprising lenses alignedin an optical axial direction and configured such that light reflectedfrom the reflecting member is incident to the lenses, wherein the movingholder is configured to be movable, with respect to the housing, in afirst axial direction perpendicular to the optical axial direction and asecond axial direction perpendicular to the optical axis direction andthe first axial direction, wherein the lens module comprises a carriersupported by the housing and configured to be linearly movable in theoptical axial direction, wherein the lens module comprises two or morelens barrels, at least one first lens barrel among the two or more lensbarrels being fixed to the carrier and configured to be immovable withrespect to the carrier in the optical axis direction, and at least onesecond lens barrel among the two or more lens barrels being disposed inthe carrier and configured to be linearly movable with respect to thecarrier in the optical axial direction, and wherein the lenses aredistributed and disposed in the two or more lens barrels.
 2. The cameramodule of claim 1, wherein one or more first lenses disposed in the atleast one first lens barrel and one or more second lenses disposed inthe at least one second lens barrel are aligned parallel to each otherin the optical axial direction.
 3. The camera module of claim 1, furthercomprising ball bearings disposed between the housing and a bottom plateof the carrier.
 4. The camera module of claim 3, wherein the carriercomprises a magnet configured to generate driving force in the opticalaxial direction in response to a coil disposed in the housing.
 5. Thecamera module of claim 4, wherein the housing comprises a pulling yokedisposed on a bottom surface of the housing, and the pulling yoke isconfigured to allow the carrier to be supported by the bottom surface ofthe housing by attractive force between the pulling yoke and the magnet.6. The camera module of claim 3, wherein seating grooves in which theball bearings are seated are disposed in a bottom surface of the housingand the bottom plate of the carrier facing each other.
 7. The cameramodule of claim 6, wherein seating grooves disposed in the housing orthe carrier, among the seating grooves, are elongate in the opticalaxial direction.
 8. The camera module of claim 1, further comprisingball bearings disposed between a bottom plate of the carrier and the atleast one second lens barrel.
 9. The camera module of claim 8, whereinthe at least one second lens barrel comprises a magnet configured togenerate driving force in the optical axial direction in response to acoil disposed in the housing.
 10. The camera module of claim 9, whereinthe carrier comprises a pulling yoke disposed on a bottom surface of thecarrier, and the pulling yoke is configured to allow the at least onesecond lens barrel to be supported by the bottom surface of the carrierby attractive force between the pulling yoke and the magnet.
 11. Thecamera module of claim 8, wherein seating grooves, in which the ballbearings are seated, are disposed in a bottom surface of the carrier anda bottom of the at least one second lens barrel facing each other. 12.The camera module of claim 11, wherein seating grooves disposed in thecarrier or the at least one second lens barrel, among the seatinggrooves, are elongate in the optical axial direction.
 13. The cameramodule of claim 9, wherein the magnet is configured to be exposedexternally of the carrier to face the coil.
 14. The camera module ofclaim 1, wherein the at least one first lens barrel is configured tocontrol an auto-focusing (AF) function, and the at least one second lensbarrel is configured to control a zoom function.
 15. The camera moduleof claim 1, wherein the at least on first lens barrel is disposed at arearmost portion of the camera module.
 16. A portable electronic devicecomprising the camera module of claim
 1. 17. The portable electronicdevice of claim 1, wherein the optical axial direction is perpendicularto a thickness direction of the portable electronic device.
 18. A cameramodule, comprising: a housing having an internal space; a reflectingmodule disposed in the internal space; a lens module disposed in theinternal space, and comprising at least one lens aligned in an opticalaxial direction and configured such that light reflected from thereflecting module is incident to the at least one lens; a magnetdisposed on the housing or the reflecting module; and a yoke disposed onthe reflecting module or the housing, opposing the magnet, wherein aninner wall of the housing is configured to support the reflecting moduleby a magnetic force between the yoke and the magnet, and wherein thereflecting module is configured to move, with respect to the housing, inat least one axial direction perpendicular to the optical axialdirection to perform an optical image stabilization (OIS) function. 19.The camera module of claim 18, wherein: the reflecting module comprisesa moving holder and a reflecting member mounted on the moving holder,the reflecting member is configured to reflect the light to be incidentto the at least one lens, either one of the magnet and the yoke isdisposed on the moving holder, the housing is configured to support themoving holder by the magnetic force between the yoke and the magnet, andthe moving holder is configured to move, with respect to the housing, inthe at least one axial direction perpendicular to the optical axialdirection to perform the OIS function.
 20. The camera module of claim18, wherein the at least one lens is disposed in at least one lensbarrel configured to perform either one or both of an auto-focusing (AF)function and a zoom function.
 21. The camera module of claim 20, whereintwo or more lenses of the at least one lens are respectively disposed intwo or more lens barrels among the at least one lens barrel, a firstlens barrel among the two or more lens barrels is configured toimplement the AF function, and a second lens barrel among the two ormore lens barrels is configured to implement the zoom function.